Granted Patent
Utility
US 5,793,906 · App. 08/770,496
Switching using optical tunnels
Inventor:
Alan Huang
Patented Case
View Patent ↗
Granted: Aug 11, 1998
Filed: Dec 20, 1996
Inventor
Alan Huang
Assignee (at issue)
NEC Research Institute, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.